Which type of policy does an IPv6 ISATAP tunnel support?

Question

Options

• Apolicies that transmit Connectionless Network Service packets
• Bpolicies to transmit IPv6 traffic within a site
• Cpolicies to transmit IPv6 traffic over a point-to-point tunnel
• Dpolicies that require addresses to have a 2002 716 prefix

• A
  2% (1)
• B
  90% (52)
• C
  5% (3)
• D
  3% (2)

Explanation

ISATAP stands for Intra-Site Automatic Tunnel Addressing Protocol (RFC 5214). By definition, ISATAP is designed for transmitting IPv6 traffic within a single site over an existing IPv4 infrastructure - it creates a logical IPv6 link over an IPv4 non-broadcast multi-access (NBMA) network within an organization. The 'intra-site' scope is fundamental to its design; it is not intended for inter-site or Internet-facing deployments. Option A (CLNS) refers to OSI networking, not IPv6 tunneling. Option C describes a generic point-to-point IPv6 tunnel, which more accurately describes a manual or GRE tunnel. Option D refers to the 2002::/16 prefix, which is specific to 6to4 tunneling, not ISATAP. ISATAP uses a modified EUI-64 format embedding the IPv4 address, not a 2002:: prefix.

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